Critics say it's a triumph of tradition over taste, but as far as seafood in London goes, this is a tried-and-true favorite, thanks to an excellent menu with moderately priced dishes, a central location, and a charming staff. This place has a cluttered entrance leading to a crowded bar where you can sip fine wines and, from September to April, enjoy oysters. In the faux-Dickensian dining room, you can choose from a long menu of fresh seafood dishes, which changes monthly depending on what is in season. The standard menu ranges from fish cakes with leaf spinach to whole Scottish lobster. For zesty starters, opt for the smoked haddock or the smoked duck salad. Desserts include bread-and-butter pudding. (Note that London has two different Duke streets. Greens is on the one in St. James's.)